CARLSBAD, Calif.--(BUSINESS WIRE)--Nov. 1, 2005--Invitrogen Corporation (Nasdaq:IVGN), a leading life sciences company, today announced the extension of an RNAi research service agreement with Procter & Gamble Pharmaceuticals, Inc. (P&GP), a division of The Procter & Gamble Company (NYSE:PG). The research service agreement is now in its fourth year and will continue through December 2006.
